And I am confused by your confusion. xD Problems with the Browser version? I think it says something like that? Strangely enough it doesn't work out for some people. An active VPN seems to cause troubles sometimes if that helps.
well i'm using which ever browser the desktop itch app uses, presumable that's some kind of chromium derivative (they almost all are) but i normally use firefox which is full up to date.
and i don't have a vpn, there really isn't much reason for me to have one because i run a website anyways so my IP address is kind of out there anyways.